<template>
    <div class="login_container">
        <div class="login_box">
            <div class="avatar_box">
                <img src="../assets/logo.png" />
            </div>
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0" class="login_form">
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"> </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-3702mima">
                    </el-input>
                </el-form-item>
                <el-form-item class="login_btns">
                    <el-button type="primary" @click="login('loginFormRef')">登录</el-button>
                    <el-button type="info" @click="resetForm('loginFormRef')">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            loginForm: {
                // 登录表单数据的绑定对象
                username: 'admin',
                password: '123456'
            },
            loginFormRules: {
                // 表单验证规则对象
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        login(formName) {
            this.$refs[formName].validate(async valid => {
                if (valid) {
                    const { data } = await this.$http.post('login', this.loginForm)
                    console.log(data)
                    if (data.meta.status !== 200) {
                        return this.$message.error('登录失败')
                    }
                    this.$message.success('登录成功')
                    window.sessionStorage.setItem('token', data.data.token)
                    this.$router.push('/home')
                } else {
                    console.log('信息有误，请重新输入!')
                    return false
                }
            })
        },
        resetForm(formName) {
            this.$refs[formName].resetFields()
        }
    }
}
</script>

<style lang="less" scoped>
.login_container {
    height: 100%;
    background-color: pink;
}
.login_box {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
}
.avatar_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130px;
    height: 130px;
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 50%;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}
.login_form {
    position: absolute;
    bottom: 0;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}
.login_btns {
    display: flex;
    justify-content: flex-end;
}
</style>
